339 lines
10 KiB
C
339 lines
10 KiB
C
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/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Email: opensource_embedded@phytium.com.cn
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*
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* Change Logs:
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* Date Author Notes
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* 2022-11-10 liqiaozhong first commit
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* 2023-03-08 liqiaozhong support 4 spis and qspi working together
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*
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*/
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#include <rtthread.h>
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#include <rtdevice.h>
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#include "interrupt.h"
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#include <string.h>
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#include "fdebug.h"
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#if defined(TARGET_E2000)
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#include "fparameters.h"
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#endif
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#include "fcpu_info.h"
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#include "fkernel.h"
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#include "ftypes.h"
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#include "fsleep.h"
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#ifdef RT_USING_SPI
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#include <dfs_file.h>
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#include "fspim.h"
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#include "fspim_hw.h" /* include low-level header file for internal probe */
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#include "drv_spi.h"
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/************************** Constant Definitions *****************************/
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/**************************** Type Definitions *******************************/
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/************************** Variable Definitions *****************************/
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#ifdef RT_USING_SPIM0
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static struct drv_spi _RTSpim0;
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#endif
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#ifdef RT_USING_SPIM1
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static struct drv_spi _RTSpim1;
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#endif
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#ifdef RT_USING_SPIM2
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static struct drv_spi _RTSpim2;
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#endif
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#ifdef RT_USING_SPIM3
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static struct drv_spi _RTSpim3;
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#endif
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static struct rt_spi_device *spi_device = RT_NULL;
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static struct rt_event rx_done_event;
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/***************** Macros (Inline Functions) Definitions *********************/
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#define FSPIM_DEBUG_TAG "SPIM"
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#define FSPIM_ERROR(format, ...) FT_DEBUG_PRINT_E(FSPIM_DEBUG_TAG, format, ##__VA_ARGS__)
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#define FSPIM_WARN(format, ...) FT_DEBUG_PRINT_W(FSPIM_DEBUG_TAG, format, ##__VA_ARGS__)
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#define FSPIM_INFO(format, ...) FT_DEBUG_PRINT_I(FSPIM_DEBUG_TAG, format, ##__VA_ARGS__)
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#define FSPIM_DEBUG(format, ...) FT_DEBUG_PRINT_D(FSPIM_DEBUG_TAG, format, ##__VA_ARGS__)
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#define EVENT_RX_DONE (1 << 1)
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/*******************************Api Functions*********************************/
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static rt_err_t spim_configure(struct rt_spi_device* device, struct rt_spi_configuration* configuration);
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static rt_uint32_t spim_xfer(struct rt_spi_device* device, struct rt_spi_message* message);
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static FError FSpimSetupInterrupt(FSpim *instance_p)
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{
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FASSERT(instance_p);
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FSpimConfig *config_p = &instance_p->config;
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uintptr base_addr = config_p->base_addr;
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u32 cpu_id = 0;
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GetCpuId(&cpu_id);
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FSPIM_DEBUG("cpu_id is %d, irq_num is %d\n", cpu_id, config_p->irq_num);
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config_p->irq_prority = 0xd0;
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rt_hw_interrupt_set_target_cpus(config_p->irq_num, cpu_id);
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rt_hw_interrupt_set_priority(config_p->irq_num, config_p->irq_prority);
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/* register intr callback */
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rt_hw_interrupt_install(config_p->irq_num,
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FSpimInterruptHandler,
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instance_p,
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NULL);
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/* enable tx fifo overflow / rx overflow / rx full */
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FSpimMaskIrq(base_addr, FSPIM_IMR_ALL_BITS);
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/* enable irq */
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rt_hw_interrupt_umask(config_p->irq_num);
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return FSPIM_SUCCESS;
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}
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static void rt_ft_send_event_done(void *instance_p, void *param)
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{
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FASSERT(instance_p);
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rt_event_send(&rx_done_event, EVENT_RX_DONE);
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return;
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}
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static const struct rt_spi_ops spim_ops =
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{
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.configure = spim_configure,
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.xfer = spim_xfer
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};
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static rt_err_t spim_configure(struct rt_spi_device *device,
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struct rt_spi_configuration *configuration)
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{
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FError ret = FSPIM_SUCCESS;
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RT_ASSERT(device != RT_NULL);
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RT_ASSERT(configuration != RT_NULL);
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struct drv_spi *user_data_cfg = device->parent.user_data;
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FSpimConfig input_cfg = *FSpimLookupConfig(user_data_cfg->spi_id);
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FSpimConfig *set_input_cfg = &input_cfg;
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/* set fspim device according to configuration */
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if (configuration->mode & RT_SPI_CPOL)
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{
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set_input_cfg->cpol = FSPIM_CPOL_HIGH;
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}
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else
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{
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set_input_cfg->cpol = FSPIM_CPOL_LOW;
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}
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if (configuration->mode & RT_SPI_CPHA)
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{
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set_input_cfg->cpha = FSPIM_CPHA_2_EDGE;
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}
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else
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{
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set_input_cfg->cpha = FSPIM_CPHA_1_EDGE;
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}
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if (configuration->data_width == 8)
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{
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set_input_cfg->n_bytes = FSPIM_1_BYTE;
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}
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else if (configuration->data_width == 16)
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{
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set_input_cfg->n_bytes = FSPIM_2_BYTE;
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}
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/* send spi_cfg to RT-Thread sys */
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ret = FSpimCfgInitialize(&user_data_cfg->spim_instance, &input_cfg);
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if (FSPIM_SUCCESS != ret)
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return RT_ERROR;
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/* irq setting */
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ret = FSpimSetupInterrupt(&user_data_cfg->spim_instance);
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if (FSPIM_SUCCESS != ret)
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return RT_ERROR;
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FSpimRegisterIntrruptHandler(&user_data_cfg->spim_instance, FSPIM_INTR_EVT_RX_DONE, rt_ft_send_event_done, NULL);
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return ret;
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}
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static rt_uint32_t spim_xfer(struct rt_spi_device *device, struct rt_spi_message *message)
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{
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RT_ASSERT(device != RT_NULL);
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RT_ASSERT(device->parent.user_data != RT_NULL);
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RT_ASSERT(message != RT_NULL);
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rt_size_t message_length;
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rt_uint8_t *recv_buf;
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const rt_uint8_t *send_buf;
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/* recv spi_cfg from RT-Thread sys */
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struct drv_spi *user_data_xfer = device->parent.user_data;
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FSpim *xfer_spim_instance = &user_data_xfer->spim_instance;
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FError tx_rx_result = FSPIM_SUCCESS;
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message_length = message->length;
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recv_buf = message->recv_buf;
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send_buf = message->send_buf;
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if (message->cs_take)
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{
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FSpimSetChipSelection(xfer_spim_instance, TRUE);
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}
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if (message_length > 0)
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{
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if (send_buf == RT_NULL && recv_buf != RT_NULL)
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{
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/* receive message */
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tx_rx_result = FSpimTransferByInterrupt(xfer_spim_instance, RT_NULL, recv_buf, message_length);
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}
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else if (send_buf != RT_NULL && recv_buf == RT_NULL)
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{
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/* send message */
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tx_rx_result = FSpimTransferByInterrupt(xfer_spim_instance, send_buf, RT_NULL, message_length);
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}
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else if (send_buf != RT_NULL && recv_buf != RT_NULL)
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{
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/* not supported yet */
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rt_kprintf("Do not support the situation that send_buf and recv_buf both not equal to 0.");
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}
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}
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if (FSPIM_SUCCESS != tx_rx_result)
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{
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rt_kprintf("FSpimTransferByInterrupt() fail!!!");
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message_length = 0;
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}
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if (rt_event_recv(&rx_done_event, (EVENT_RX_DONE),
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(RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR),
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RT_WAITING_FOREVER, RT_NULL) != RT_EOK)
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{
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rt_kprintf("Wait rx timeout!!!\n");
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message_length = 0;
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}
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if (message->cs_release)
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{
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FSpimSetChipSelection(xfer_spim_instance, FALSE);
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}
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return message_length;
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}
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int ft_spi_init(void)
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{
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rt_err_t result;
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static struct rt_spi_bus spim_bus;
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/* event creat */
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if (RT_EOK != rt_event_init(&rx_done_event, "rx_done_event", RT_IPC_FLAG_FIFO))
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{
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rt_kprintf("Create event failed.\n");
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return RT_ERROR;
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}
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/* spi bus init */
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result = rt_spi_bus_register(&spim_bus, "spi0", &spim_ops);
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RT_ASSERT((struct rt_spi_device *)rt_device_find("spi0"));
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rt_kprintf("Spi bus spi0 init\n");
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/* spi device init and attach to bus */
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#ifdef RT_USING_SPIM0
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_RTSpim0.spi_id = FSPI0_ID;
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result = rt_spi_bus_attach_device(&_RTSpim0.device, "spi00", "spi0", &_RTSpim0);
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spi_device = (struct rt_spi_device *)rt_device_find("spi00");
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if (RT_NULL == spi_device)
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{
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rt_kprintf("Spi init failed -> can't find spi00 device!\n");
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return RT_ERROR;
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}
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rt_kprintf("Spi master device spi00 init.\n");
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#endif
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#ifdef RT_USING_SPIM1
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_RTSpim1.spi_id = FSPI1_ID;
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result = rt_spi_bus_attach_device(&_RTSpim1.device, "spi01", "spi0", &_RTSpim1);
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spi_device = (struct rt_spi_device *)rt_device_find("spi01");
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if (RT_NULL == spi_device)
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{
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rt_kprintf("Spi init failed -> can't find spi01 device!\n");
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return RT_ERROR;
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}
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rt_kprintf("Spi master device spi01 init.\n");
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#endif
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#ifdef RT_USING_SPIM2
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_RTSpim2.spi_id = FSPI2_ID;
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result = rt_spi_bus_attach_device(&_RTSpim2.device, "spi02", "spi0", &_RTSpim2);
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spi_device = (struct rt_spi_device *)rt_device_find("spi02");
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if (RT_NULL == spi_device)
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{
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rt_kprintf("Spi init failed -> can't find spi02 device!\n");
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return RT_ERROR;
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}
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rt_kprintf("Spi master device spi02 init.\n");
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#endif
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#ifdef RT_USING_SPIM3
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_RTSpim3.spi_id = FSPI3_ID;
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result = rt_spi_bus_attach_device(&_RTSpim3.device, "spi03", "spi0", &_RTSpim3);
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spi_device = (struct rt_spi_device *)rt_device_find("spi03");
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if (RT_NULL == spi_device)
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{
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rt_kprintf("Spi init failed -> can't find spi03 device!\n");
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return RT_ERROR;
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}
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rt_kprintf("Spi master device spi03 init.\n");
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#endif
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return result;
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}
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INIT_DEVICE_EXPORT(ft_spi_init);
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/* spi test example */
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static void fspim_test_sample(int argc, char *argv[])
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{
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rt_uint8_t send_to_flash_id = 0x9f; /* Flash cmd */
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rt_uint8_t recv_from_falsh_id1[5] = {0};
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rt_uint8_t recv_from_falsh_id2[5] = {0};
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/* find the spi device to get the device handle */
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spi_device = (struct rt_spi_device *)rt_device_find("spi02");
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if (!spi_device)
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{
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rt_kprintf("fspim_test_sample run failed! can't find spi02 device!\n");
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}
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else
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{
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static struct rt_spi_message msg1, msg2;
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msg1.send_buf = &send_to_flash_id;
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msg1.recv_buf = RT_NULL;
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msg1.length = 1;
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msg1.cs_take = 1;
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msg1.cs_release = 0;
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msg1.next = &msg2;
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msg2.send_buf = RT_NULL;
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msg2.recv_buf = recv_from_falsh_id2;
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msg2.length = 5;
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msg2.cs_take = 0;
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msg2.cs_release = 1;
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msg2.next = RT_NULL;
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/* send the command to read the ID using rt_spi_send_then_recv() */
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rt_spi_send_then_recv(spi_device, &send_to_flash_id, 1, recv_from_falsh_id1, 5);
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rt_kprintf("use rt_spi_send_then_recv() read flash ID is:0x%x 0x%x 0x%x 0x%x 0x%x\n", recv_from_falsh_id1[0], recv_from_falsh_id1[1], recv_from_falsh_id1[2], recv_from_falsh_id1[3], recv_from_falsh_id1[4]);
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/* send the command to read the ID using rt_spi_transfer_message() */
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rt_spi_transfer_message(spi_device, &msg1);
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rt_kprintf("use rt_spi_transfer_message() read flash ID is:0x%x 0x%x 0x%x 0x%x 0x%x\n", recv_from_falsh_id2[0], recv_from_falsh_id2[1], recv_from_falsh_id2[2], recv_from_falsh_id2[3], recv_from_falsh_id2[4]);
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}
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}
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MSH_CMD_EXPORT(fspim_test_sample, "fspim test sample");
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#endif
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